Cook County

county in Illinois, United States
AdministrativeArea county_of_illinois Q108418
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Cook County

Summary

Cook County is a county of Illinois[1]. It ranks in the top 0.98% of county_of_illinois entities by monthly Wikipedia readership (17,206 views/month, #1 of 102).[2]

Key Facts

  • Cook County was a member of GovAI Coalition[3].
  • Cook County is located in Illinois[4].
  • Cook County is in the country of United States[5].
  • Cook County's instance of is recorded as county of Illinois[6].
  • Cook County's capital is recorded as Chicago[7].
  • Cook County's shares border with is recorded as McHenry County[8].
  • Cook County's shares border with is recorded as Lake County[9].
  • Cook County's shares border with is recorded as Lake County[10].
  • Cook County's shares border with is recorded as Will County[11].
  • Cook County's shares border with is recorded as DuPage County[12].
  • Cook County's shares border with is recorded as Kane County[13].
  • Cook County's shares border with is recorded as Porter County[14].
  • Cook County's shares border with is recorded as Berrien County[15].
  • Daniel Pope Cook is named after Cook County[16].
  • Cook County's contains the administrative territorial entity is recorded as Barrington[17].
  • Cook County's contains the administrative territorial entity is recorded as Oak Lawn[18].
  • Cook County's contains the administrative territorial entity is recorded as Bridgeview[19].
  • Cook County's contains the administrative territorial entity is recorded as Chicago[20].
  • Cook County's contains the administrative territorial entity is recorded as Maywood[21].
  • Cook County's contains the administrative territorial entity is recorded as Glenview[22].
  • Cook County's flag is recorded as flag of Cook County[23].
  • Cook County's Commons category is recorded as Cook County, Illinois[24].
  • January 15, 1831 marks the founding of Cook County[25].
  • Cook County's coordinate location is recorded as {'lat': 41.8, 'lon': -87.716666666667}[26].
  • Cook County's authority is recorded as Cook County Government[27].

Body

Geography

Cook County is in the country of United States[5]. It is located in Illinois[4].

Physical Characteristics

Cook County covers an area of {'unit': 'Q712226', 'amount': '+4233.697805'}[28]. It sits at an elevation of {'unit': 'Q11573', 'amount': '+950'}[29]. Population counts include {'amount': '+5194675'}[30], {'amount': '+5198853'}[31], {'amount': '+5212589'}[32], {'amount': '+5227992'}[33], {'amount': '+5240700'}[34], and {'amount': '+5238216'}[35].

Designation and Status

Cook County's instance of is recorded as county of Illinois[6].

History and Context

January 15, 1831 marks the founding of Cook County[25]. Daniel Pope Cook is named after it[16].

Why It Matters

Cook County ranks in the top 0.98% of county_of_illinois entities by monthly Wikipedia readership (17,206 views/month, #1 of 102).[2] It has Wikipedia articles in 27 language editions, a strong signal of global cultural recognition.[36] It is known by 38 alternative names across languages and contexts.[37]

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [5] ↑ . wikidata.org.
  2. [6] ↑ . cookcountyil.gov. cookcountyil.gov. Provenance: wikidata.org.
  3. [7] ↑ . cookcountyil.gov. Retrieved . cookcountyil.gov. Provenance: wikidata.org.
  4. [8] ↑ . wikidata.org.
  5. [9] ↑ . data.census.gov. Retrieved . data.census.gov. Provenance: wikidata.org.
  6. [10] ↑ . data.census.gov. Retrieved . data.census.gov. Provenance: wikidata.org.
  7. [11] ↑ . data.census.gov. Retrieved . data.census.gov. Provenance: wikidata.org.
  8. [12] ↑ . data.census.gov. Retrieved . data.census.gov. Provenance: wikidata.org.
  9. [13] ↑ . data.census.gov. Retrieved . data.census.gov. Provenance: wikidata.org.
  10. [14] ↑ . data.census.gov. Retrieved . data.census.gov. Provenance: wikidata.org.
  11. [15] ↑ . data.census.gov. Retrieved . data.census.gov. Provenance: wikidata.org.
  12. [4] ↑ . wikidata.org.
  13. [16] ↑ . wikidata.org.
  14. [17] ↑ . wikidata.org.
  15. [18] ↑ . wikidata.org.
  16. [19] ↑ . wikidata.org.
  17. [20] ↑ . wikidata.org.
  18. [21] ↑ . wikidata.org.
  19. [22] ↑ . wikidata.org.
  20. [23] ↑ . wikidata.org.
  21. [24] ↑ . wikidata.org.
  22. [3] ↑ . sanjoseca.gov. Retrieved . sanjoseca.gov. Provenance: wikidata.org.
  23. [25] ↑ . cookcountyil.gov. Retrieved . cookcountyil.gov. Provenance: wikidata.org.
  24. [26] ↑ . wikidata.org.
  25. [27] ↑ . wikidata.org.
  26. [30] ↑ . 2010 United States Census. Retrieved . census.gov. Provenance: wikidata.org.
  27. [31] ↑ . census.gov. census.gov. Provenance: wikidata.org.
  28. [32] ↑ . census.gov. census.gov. Provenance: wikidata.org.
  29. [33] ↑ . census.gov. census.gov. Provenance: wikidata.org.
  30. [34] ↑ . census.gov. census.gov. Provenance: wikidata.org.
  31. [35] ↑ . Population Estimates Program. census.gov. Provenance: wikidata.org.
  32. [29] ↑ . wikidata.org.
  33. [28] ↑ . www2.census.gov. Retrieved . www2.census.gov. Provenance: wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [36] ↑ . Wikidata sitelinks. wikidata.org.
  3. [37] ↑ . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). Cook County. Retrieved October 8, 2026, from https://4ort.xyz/entity/cook-county
MLA “Cook County.” 4ort.xyz Knowledge Graph, 4ort.xyz, 8 Oct. 2026, https://4ort.xyz/entity/cook-county.
BibTeX @misc{4ortxyz_cook-county_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Cook County}}, year = {2026}, url = {https://4ort.xyz/entity/cook-county}, note = {Accessed: 2026-10-08}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Cook County — https://4ort.xyz/entity/cook-county (retrieved 2026-10-08)

Canonical URL: https://4ort.xyz/entity/cook-county · Last refreshed:

Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 8d ago · Schekinov Alexey Victorovich · 2026-10-02 view diff on Wikidata ↗
    Wikipedia languages → ['ang', 'ar', 'azb', 'bar', 'be', 'bg', 'bpy', 'ca', 'ce', 'ceb', 'cs', 'cy', 'd
    Claims rich → —
    "/* wbsetclaim-update:2||1|1 */ [[Property:P31]]: [[Q11812346]]"
  2. 5w ago · Theklan · 2026-09-04 view diff on Wikidata ↗
    P14687 → Data:US presidential elections by county/Cook County, Illino
    "/* wbsetclaim-create:2||1 */ [[Property:P14687]]: Data:US presidential elections by county/Cook County, Illinois.tab, Link US presidential election dataset (P14687, subject: United States presidential"
  3. 6w ago · Carlwinslow11 · 2026-08-22 view diff on Wikidata ↗
    Taxonomicon id → —
    Area → {'unit': 'Q712226', 'amount': '+4233.697805'}
    Population → {'amount': '+5194675'}, {'amount': '+5198853'}, {'amount': '+5212589'} +5
    Top-level internet domain → —
    "/* wbeditentity-statements-multiple-properties-update:0||8 */ Correct two misapplied identifiers; update census-backed population and area data; improve core sourcing"
  4. 8w ago · RVA2869 · 2026-08-12 view diff on Wikidata ↗
    Located in time zone → —
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/46950|batch #46950]]: redundant value, already present at higher administrative level"
  5. 10w ago · Mxn · 2026-07-25 view diff on Wikidata ↗
    Top-level internet domain → —
    Domain name → cook.il.us
    "/* wbsetclaim-create:2||1 */ [[Property:P13337]]: Q140696559"
  6. 12w ago · Susmuffin · 2026-07-17 view diff on Wikidata ↗
    Harper's tag → cook-county
    "/* wbsetclaim-create:1||1 */ [[Property:P13772]]: cook-county, Matched to [[:toollabs:mix-n-match/#/entry/289917268|cook county (#289917268)]] in [[:toollabs:mix-n-match/#/catalog/7915|Harper's tag]] "
  7. 19w ago · Mxn · 2026-05-24 view diff on Wikidata ↗
    Member of → GovAI Coalition
    "/* wbcreateclaim-create:1| */ [[Property:P463]]: [[Q138812596]], [[:toollabs:quickstatements/#/batch/258464|batch #258464]]"
  8. 21w ago · Mahir256 · 2026-05-13 view diff on Wikidata ↗
    Category for people born here → Category:Births in Cook County, Illinois
    Elevation above sea level → {'unit': 'Q11573', 'amount': '+950'}
    Topic's main category → Category:Cook County, Illinois
    Water as percent of area → {'unit': 'Q11229', 'amount': '+42.2'}
    + 38 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/31546|batch #31546]]"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.